2011 GMC Sierra 2500 Denali Duramax 2011 GMC Sierra 2500 Denali Duramax. 6.6 Liter 20-inch light bar. Leather interior. Backup camera. Sprayed in box liner. Heated n cooled seats. Straight pipe 5" exhaust. EFI tuner. Weather tech floormats. Located in La Crete AB Financing Nationwide Shipping and Warranties available to qualified buyers Stock #: A138499U